Two twins separated by deadly disease and selective cure. Kasumi and his sister Sizhuk were infected with the jellyfish virus, which gradually turns the victim into a stone. There is no treatment, but from two only Kasumi chose to enter into a kind of cryogeno frozen state together with 159 others until the medicine is found. At some point, an indefinite future Kasumi wakes up to find himself and others who were in suspended animation in an unknown world with brutal monsters. Deciding to reveal the secrets of its current situation and the fate of his twin sister, Kasumi is fighting for survival in the insidious world.